JP2000066817A - Keyboard device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce an input error for a user to erroneously press a peripheral key or the like. SOLUTION: An input key discriminating part 3 discriminates the key input of a touch panel 1 and stores it in a key buffer 4. When a correcting operation detecting part 5 detects the input of a correct key having a correcting function such as deletion or a back space, the key input just after that is compared with contents in the key buffer 4, it is discriminated which a key is to be actually pressed by the user and the discriminated result is preserved in a register 7 for learning data by a learning part 6. While referring to the learning data in the register 7 for learning data, a touch input range control part 8 controls the touch input acceptance range of keys on the touch panel 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a keyboard device using a touch panel.

[0002]

2. Description of the Related Art At present, as portable information devices become smaller, keyboards are required to be made thinner, and as a means thereof, flat keyboards such as touch panels are increasingly used in the future. It is believed to be a thing.

[0003] A touch-panel type keyboard that is used for both input and display has a display range extending over the entire surface of the device.
It is possible to relatively easily change the key layout and the like. For example, in Japanese Patent Application Laid-Open No. 63-118823, a touch panel is mounted on a flat display, and a keyboard is displayed on a screen of the flat display. In addition, there is described a technology that enables a key layout to be changed by detecting a frequently used key and setting it as a direct key.

[0004]

However, while such a conventional technique can be expected to operate flexibly such as changing the key layout as needed, a flat type keyboard has a flat key portion. Therefore, there is a problem that it is difficult to instantaneously determine which part is the target key, and input errors such as accidentally pressing a peripheral key are increased.

An object of the present invention is to automatically detect that a user has made an erroneous input of a key on a touch panel, and adjust the input acceptance range of an arbitrary key in accordance with the result, thereby reducing the erroneous input. It is to provide a keyboard device which can be used.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a learning unit for learning an erroneous input by a key touch in a keyboard device for displaying a key on a touch panel and touching and accepting a touch input acceptance range of the key. A touch input reception range adjustment unit that adjusts a touch input reception range of a key with reference to a result, and changes a touch input reception range of each key according to a user's key touch behavior.

In addition, a correction operation detecting section is provided which detects a correction operation by touching a key having a correction function and judges an erroneous input from key inputs before and after the correction operation.

In order to be able to handle a plurality of users, a plurality of learning data storage units capable of storing learning results separately for each user may be prepared.

[0009]

Next, embodiments of the present invention will be described with reference to the drawings.

In FIG. 1, the present keyboard device is mainly composed of a touch panel 1 having a display function and a key control unit 2.
The key control unit 2 includes an input key determination unit 3
A key buffer 4, a correction operation detecting unit 5, a learning unit 6, a plurality of learning data registers (learning data storage unit) 7, and a touch input reception range adjusting unit 8.

The keys are initially displayed on the touch panel 1 in a standard layout as shown in FIG. When any displayed key is touched, the key is coded by the input key discrimination section 3 and is temporarily stored in the key buffer 4 together with the input coordinates. The buffer capacity only needs to be large enough to accumulate at least one input data. However, in actual operation, since the correction is not limited to the immediately preceding input, several times of data are held. There is a need.

The correction operation detecting section 5 monitors a key input,
When an input of a correction key having a correction function such as deletion or backspace is detected, the key input immediately after that is compared with the contents of the key buffer 4 to determine which key the user has actually pressed. .

The result of the determination is stored in the learning data register 7 by the learning section 6 and serves as a reference for the next and subsequent input determinations. By preparing a plurality of learning data registers 7, it is possible to switch and retain individual learning data of a plurality of users as long as resources allow.

Also, in preparation for a case where the correction key is frequently used in a specific application, the combination of the changeover switch 10 can be used by switching among three modes of learning / no learning / function invalidation.

When the present invention is actually applied to an apparatus, the key control unit 2 enclosed by a dotted line can be realized by software, and does not require dedicated hardware.

The operation will be described with reference to the flowchart of FIG. When a key on the touch panel 1 is touched in a key input waiting state (step S1), the correction operation detecting unit 5
Monitors the execution of a correction operation using a correction key (for example, in a personal computer, touches a DEL key to be deleted or a BS key to be backspaced and deleted in a personal computer) to confirm that the user has made an erroneous key input. (Step S2) It is determined whether or not the last key input was actually made by mistake with another key.

If no correction key input is detected, the learning unit 6 processes the current input coordinates and key code (step S3), and returns to the beginning to wait for a user input.

When the input of the correction key is detected, the current input coordinates and the key code are processed by the learning unit 6 (step S4), and the process waits for a key input from the user (step S5). Is compared with the contents of the key buffer 4 to determine which key the user actually tried to enter (step S6). The data such as the key code, input coordinates and displacement from the target key at that time are stored in the learning unit
(Step S7).

The learning unit 6 can use a learning model of a neural network which inputs data such as a key code, input coordinates, and displacement from a target key, and a method of creating a histogram and obtaining the most frequent.

The touch input range adjuster 8 refers to the learning data in the learning data register 7 and adjusts a touch input acceptance range of a key on the touch panel 1. In this case, if the display can be changed, such as a touch panel with a display function, a layout display considering learning is performed. Specifically, the size of the keyboard and the key interval,
The display is changed from the standard display as shown in FIG. 3 in accordance with the learning result as shown in FIG. 4 (the portion with black dots is the input acceptance range by key touch). However, when the display itself is changed, a change in the visual information may cause a change in the input tendency of the user. Therefore, a mode for preventing the display from being changed is also prepared so that the user can select the mode.

Further, even if the keyboard and the display device are separated from each other, it is possible to confirm / correct the current input range of each key on the display device.

When the input coordinates are outside the valid input range of the key, the subsequent input keys are checked, and if the input coordinates are near the invalid input immediately before, the valid input range of the key is input. Expand in the direction of the mistake.

Conversely, in a portion where there is no input for a long time and the input reception range of the adjacent key is expanded, the input reception range is reduced to reduce the erroneous input, and the interval between adjacent keys is secured. I do.

As a result of the learning as described above, the input acceptance ranges of the respective keys are individually different as shown in FIG. 4, so that the learning result can be confirmed so that the user is not confused. It is good to do.

[0025]

According to the present invention, an erroneous input due to an erroneous key touch is learned, and the touch input acceptance range of the key is adjusted with reference to the learning result, so that the user erroneously presses a peripheral key. And the like, input errors are reduced. Further, the adjustment of the touch input acceptance range can be automatically performed without the user's awareness, and no special hardware is required. Therefore, the present invention can be applied to a portable small computer.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of a keyboard device according to the present invention.

FIG. 2 is a flowchart of an operation.

FIG. 3 is a standard key layout diagram.

FIG. 4 is a layout diagram after adjusting a touch input acceptance range.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Touch panel 2 Key control unit 3 Input key discrimination part 4 Key buffer 5 Correction operation detection part 6 Learning part 7 Learning data register 8 Touch input reception range adjustment part 9.1.10 switch

Claims (3)

[Claims] 1. A keyboard device for displaying keys on a touch panel and touching a key input accepting range to input a key, wherein the learning unit learns erroneous input by key touch, and touches the key with reference to the learning result. A keyboard device comprising: a touch input reception range adjustment unit that adjusts an input reception range. 2. The keyboard according to claim 1, further comprising a correction operation detecting unit that detects a correction operation by touching a key having a correction function and determines an erroneous input from key inputs before and after the correction operation. apparatus. 3. The keyboard device according to claim 1, further comprising a plurality of storage units for learning data capable of storing a learning result separately for each of a plurality of users.